2 Check External Triggering

VOLTS/DIV (both) 10 mV

VERTICAL MODE CH 1

SEC/DIV 20 mS

b. Connect the test setup as shown in Figure 4-1.

f. Set the generator to 2 MHz.

g. CHECK—Stable display can be obtained by adjusting the TRIGGER LEVEL control for each switch combination given in Table 4-6.

h. Remove the 10X attenuator from the test setup and set the EXT COUPLING switch to DC-MO.

LEVELED SINE-WAVE GENERATOR

50-fi CABLE

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10X ATTENUATOR

BNC T-CONNECTOR

PROBE-TIP-TO-BNC ADAPTER

10X PROBE

3827-10

Figure 4-1. Test setup for external trigger and jitter checks.

i. Repeat part g.

VOLTS/DIV (both) 50 mV

VERTICAL MODE CH 1

SEC/DIV 20 its

TRIGGER SOURCE INT

VERTICAL MODE SEC/DIV X10 Magnifier TRIGGER SOURCE

n. Repeat part e.

o. Set the generator to 60 MHz.

k. Reconnect the test setup as shown in Figure 4-1.

p. Repeat parts g and h.

I. Set the leveled sine-wave generator to produce a 5-division, 50-kHz display.

q. Repeat part g.

r. Disconnect the test setup.

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